To Decant, or Not: A Quiet Guide to the Carafe
Decanting does two different jobs — removing sediment and giving wine air. Knowing which one a bottle needs is most of the craft.
Photograph: Aurelier · House photography
There is a particular pause at a good table when a bottle is decanted. The cork is out, the candle is lit, and for a minute nobody is drinking — everyone is watching wine move slowly from glass to glass. It looks like ceremony. It is, in fact, two quite practical jobs done at once, and the art lies in knowing which of them the bottle in front of you actually needs.
Two reasons, not one
The first reason to decant is sediment. As red wines and vintage ports age, colour and tannin compounds slowly bind together and fall out of solution, settling as a fine deposit or, in port, a heavier crust. None of it is harmful, but it is gritty and bitter in the mouth, and it clouds the glass. Decanting lets you pour the clear wine off and leave the deposit behind.
The second reason is air. A young, structured red — the kind that tastes tight and closed when first opened — often relaxes with oxygen. Aromas open, tannins feel softer, and the wine starts to show what it will become. Here the decanter is working less as a filter and more as a lung.
The two reasons pull in different directions. A young wine wants generous air and has no sediment at all. An old wine has sediment but is often fragile, and too much air can flatten what little fruit it has left.
Reading the bottle
A few questions settle most decisions.
- Is it young and powerful? Decant it early and pour it vigorously. Splashing down the side of the decanter is no sin here.
- Is it old? Stand the bottle upright for a day if you can, so the sediment settles to the base. Decant gently, with a light behind the neck, and stop when the deposit reaches the shoulder. Then serve fairly soon.
- Is it delicate — an older Pinot Noir, a mature white? Consider not decanting at all. Open it, taste it, and let it develop in the glass instead.
The case of vintage port
Vintage port is the clearest example of both jobs at once. It throws a heavy crust in bottle, so it always needs decanting, but how long it should then sit depends on its age. The Vintage Port Site suggests that ports under about forty years old can be stood upright for a few minutes and decanted two to three hours before drinking, while older bottles need a longer stand of around half an hour and should be decanted only thirty minutes to an hour before serving. Older ports can also smell a little reduced when first poured; that usually clears within twenty to thirty minutes.
The decanter does not improve a wine. It only gives the wine the conditions to show itself.
The quiet technique
Pour slowly and steadily, in one movement if you can, so the sediment is not stirred back up. A candle or a small torch under the neck is not theatre: it is the only reliable way to see the deposit arrive. Keep the last centimetre of wine in the bottle — it is almost always worth sacrificing.
Above all, taste as you go. The point of decanting is not to follow a rule but to bring a wine to the table at its best. The most experienced sommeliers decide bottle by bottle, and they change their minds often.
Sources & further reading
- Decanting Vintage Port — The Vintage Port Site
- Decanting Wine: When, Why, and How to Do It Right — Coravin
- Decanting and Aeration: When, Why, and How Sommeliers Do It — Sommelier Authority
